/*
   Copyright (c) 2017 Ahome' Innovation Technologies. All rights reserved.

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
 */

package com.ait.lienzo.client.core.shape.wires;

public interface IContainmentAcceptor {

    IContainmentAcceptor ALL = new DefaultContainmentAcceptor(true);

    IContainmentAcceptor NONE = new DefaultContainmentAcceptor(false);

    boolean containmentAllowed(WiresContainer parent, WiresShape[] children);

    boolean acceptContainment(WiresContainer parent, WiresShape[] children);

    class DefaultContainmentAcceptor implements IContainmentAcceptor {

        final private boolean m_defaultValue;

        private DefaultContainmentAcceptor(final boolean defaultValue) {
            m_defaultValue = defaultValue;
        }

        @Override
        public boolean containmentAllowed(WiresContainer parent, WiresShape[] children) {
            return m_defaultValue;
        }

        @Override
        public boolean acceptContainment(WiresContainer parent, WiresShape[] children) {
            return m_defaultValue;
        }
    }
}
